Molding machine



Dec., 4, 1923..

E. o. BEARDSLEY ET AL ,MoLDING MACHINE Filed Jan.'25 v, l1922 Patented Dec. 4, `1923.

, j y 1,476,135 mirri-:1) srnrssrA'r-ENT OFFICE.

man o. BnanDsLnY AND WALTER r. rrrn'n, or Carcano, ILLINoIs, ns'sIGNoas 'ro 'run BnAnDsLEY a Pirna COMPANY, or Cmoaco, ILLINoIs, A ConronA'rIoNor ILLINOIS.

uoLnINe insomma.

To all wlwm. it my coment." Be it known that we, ELMER O. BnARDs- LEY and WALTER F. PIPER, both citizens of v the United States and residents of Chicago,

` vide 'improved means for detachablg wads of sand to vbecome more dense, which is a desideratum in the high speed projection of sand. 4 y a f Another object of the invention is to pron securing the projector blade to the rotor ody b which the operative surface of the blade wi l be leftfree of projections.

The invention consists in the several(l novel features herefiuafterl set liforth and more particularly defined by claims at the conclusion hereo In the draw' on line 1-,-1of ig. 2. Fi 2 is a vertical axial section on line 2-2 o Fig. 1. Fig. 3

. is a detail section of the body of the rotor. -;Fig. 4 is a perspective of the projector,

blade; Fig. 5j is-a section showin the de.- vice for ..attacli in the projectorlade to thev rotor-body( i 6 is a perspective 'of the 'seat for the projector'blade in the 'rotorbody. Figs. 7, 8 4 and 9 are perspectives of the rotor'.

The inventiln isexem lied ina strutlge com risn a orizonta swin ta u r suporting arm 6, which iysusuayng as exemp lfied in curl Patent'-No. 1,309,833 daad July 1t 1919, but may be ported in an suitable manner; a motori rivien shaft extendin through saidrm'g-afstator or casing whc Dis suitably-'andA supported by a yoke 10 which,i's fixed-tothe arm 6, as more fully illustrated in said patent, and comprises .aufv upper arcuate ripheral wall v9 withasid'e wall 8,19; ower arcuate wall 9 and asand outlet A9"; a. suitably driven endless belt 11 which is jection of the invention is to prc- Fig. luis a section taken j supported between t intov thev dash.

adapted to feed sand through an opening 9 'atthe inner side of the casing and passes around a roller 12 which is suitabl supported on the arm 6; a rotor-body, w 'ch is mounted on roller-bearings 13, 14 carriedby the outer end of arm 6 and secured to rotate with, andbe driven by, shaft 7 by means of a driving-collar 15 which is keyed to the pro'ecting end of said shaft and se- ,cured to t e rotorfbody by bolts 16, and a' projector-blade 30 on the rotor-body.

The rotor-body comprises a hub 17, an outer peripheral wall 19l adjacent the casingperiphery and integral with hub 17, .and a elicoidal wall 20 between the hub and said wall, commencing as at 21 at the outer' 4end of the projector-blade and extends helicoidally to the other end of the projector#v Said blade comprises a blade at 22.

curved deliecting portion 23 for directing the wads of sand to, and. packing -them against, wall '9 of the casing, and a shearb ade 24 at the inner end of the rotor-'body for severing wads of. sand from the stream fed tothe projector by the endless-belt A11. The rotoris provided with a weight 31 to counterbalance Y the oppositely disposed blade and metal.

A characteristic of thisyconstruction is,l

that the outer jperipheral` wall 19 and heli-f coidal wall l20 serve as means todis `lace the air from the'gzone of Arotation o the projector-blade, whilst .leaving only Sullicient space yfor the sand to pass into the path in front of the rojector, These walls 9 and 20 form air- Isp acin 'means in '.the zone'of rotation of the bl e and of proessively increasin area from the front of Sco t e blade to its'bac thus forming a sand receiving space in said4 zone which isn of ,I am: y j blade to its front-,so that the proper delivery of the sand to -the rotorwill not be interfered with. A desideratum is to densify thewads of sand, particularly when the Vprojector is used at vare exceptionally atmosp eric resistanf tending@ ma d the sand a'nd increasing `area from the back .high speed, and by .providing such' air displaning means, less air accumulate'siinefront l of the rojector and resultantlyftlierefis lessl 1 l acerdensity aifait;1'vm'fniuad e1 blade andcasingfand projected blade is 'securedtol-gili/g;

blade which fits against a correspondingly undercut rib 26 on the rotor-body to form an interlock between the blade and body,

and a bolt 27 whichlextends through the' Arotor-body, is provided With a hook 28 for engaging the inner edge of the projector` blade and is provided with a nut, 29 which draws the hook' 28 into position to secure the blade in a curved seat interlocked at ribs 25,26. This detachable connection for securing the blade on the rotor-body exl emplies one in which -no drilling of holes and a hook. at the lowenmarg'in,

is necessary in the curved face of the blade..

ln practice, the blade is formed of hard 4metal and it has been found that when bolts are usedwhich extend through the base of the blade, they cannot be readily made to moulds in which the rotor is provided with vwith a projector bla jector-blade to densify the Wads of sand andalso an improved attaching means for the projecting blade which avoids the necessiti of drilling holes in its base. he inventionis not to be understood as restricted to the details set forth, since these may be modified within the scope of the appended claims, without departing from .the spirit and scope ,ofthe invention.

Having thus described the invention, what we claun as new and desire' to secure by Letters Patent, is:

1. In a molding machine, the combination of a suitable support of a rotor provided de, means for feeding sand to the blade, and air-displacing means on therotor and in thezone of rotation of the blade.

2. Iny a molding machine, the combination lof a suitable support, ofa rotorprovided with a. projector-blade, a casing around the rotor, means for feeding sandjto the blade and air-displacing means on the rotor and x me' in the zone of rotation of the blade.

3.- In a molding machine, the combination of a suitable support, of a rotor provided with a projecton'blade, a, casing around the blade,- means for'feeding sandto the blade, and air-,displacing means on the rotor in the zone of rotation and of progre'ively increasing area from the front to the rear of the blade."

4.- In a molding machine, the combination of a suitable support, 'a rotorprovided with' a bed and a projactor-blade on said bed, means for feedmgsand to the rotor lotinmeans for displacing air behind the pro' body provided 'inname dinally of the' rotor, and air-displacing means on the rotor and in the zone of rotation of the projector blade.v .i 5. In a molding machine, the combinatie 'ofa suitable su port, a rotor provided with of progressively increasing width from the rear ofthe blade to' -its front.

6. Ina moldingmachine, the combination of'a suitable su port, a rotor provided with a projector-'bla e, means for feeding sand to the rotor longitudinally of the rotor, and a wall on the rotor for displacing air in the zone ,of` rotation of the projector-blade and formed Ato progressivel increase the sandspace from the rear to t4 front of the blade.

7. In a molding machine, the combination of a support, a rotor comprising a body and a vprojector blade, the body being formed with a helicoidal wall to dis lace air behind -from the zone of rotation og the blade, and a casing around lthe rotor.

8. In a'molding machine, the combination of a vsuitable su port, a 'rotor comprising a body and a projector-blade, the body 'being formed with a helicoidal and peri heral wall to displace air from the zone o rotation, and a casing around the projector.

9. In a molding machine, a lramming head comprising [in combination a rotor "body, a projector blade on said body, an interlocking connection between the body and the b lade, and means for securing the conietion to secure the projector blade on the 10. In a molding machine, a ramming head comprising in combination va rotor body, a projector blade'on said body, a.n interlocking connection between the body and 4the blade, and means adjacent and outside of one end of the blade for' securing the con- ;)iection to secure the projector blade on the ody.

11. In a molding machine, head a rammi'ng comprising in combination a rotorbody, aprojector blade on said body, an in-y terlocking connection between the body and vthe back of the blade, and means for securthe connection'for Securing the projector-blade on the body. .j

12. Inl a molding machine, a ramming head com rising. in combination a rotor body provided with a seat, a projector blade on said seat'interlocking ribs between the 'body and one end of the blade, andmeans extending through 'the body .and holding one margin of the blade to secure the ribs in interlockingrelation. l

13. In 'a'mol machine, a ramming head comprising in combination 'a rotor mth a wie aprojector ble on said seat, interlocking ribs between the seat and one end of the blade and a bolt ex' 14. In a molding machine, a rammingAA head comprising in combination a, rotorbody provlded with a seat, a curved rolector-blade on said seat, interlocking ribs between the seat and the back of lthe blade, l0 and a bolt extending through the bodyandA holding one margin of the ,blade against displacement and securing the ribs in interlocking relationl i Signed at of January, 1922.

v ELMER O. BEARDSLEY. l WALTER F. PIPER.

Chicago,.-llinoi's, this 7th day 15 

